We are so over crunches! So work your abs with these belly-flattening alternatives. This five-minute workout is loaded with seriously effective moves, including a killer plank circuit. You can do this workout on its own or after a cardio session.
Reverse crunches are one of the top exercises to build a deep V-cut and defined LOWER ABS. Stick your hands behind your head, tighten your core, and powerfully contract your lower abs — lift your hips off the ground and pull them into your chest.